package cn.itcast.com.Collection;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;

public class testmain {
    public static void main(String[] args) {
        ArrayList arrayList = new ArrayList();
        System.out.println(arrayList.add("qqq"));
        arrayList.add("qqq");
        arrayList.add("qqq");
        System.out.println(arrayList.remove("qqq"));
        System.out.println(arrayList);
        arrayList.clear();
    }
}
